Influence of Microclimate, Food, and Predation on Anopheles quadrimaculatus (Diptera: Culicidae) Growth and Development Rates, Survivorship, and Adult Size in a Michigan Pond

Authors: Wallace, J. R.; Merritt, R. W.

Source: Environmental Entomology, Volume 28, Number 2, April 1999 , pp. 233-239(7)

Publisher: Entomological Society of America

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Recently, the need for ecological management of mosquitoes has sparked a new interest in their larval ecology as an important component in malaria control programs. Three factors affecting larval growth and development rates, survivorship and adult size were tested with a natural population of Anopheles quadrimaculatus (Say) in a Michigan pond. Second-instar An. quadrimaculatus (n = 40) were collected from a field population and maintained in floating microcosms. Before larval introductions, microcosms were placed in 2 pond habitats (open water zones and vegetated areas). Experimental treatments in this study included algal clump, algal clump/predator, and predator only. Control treatment microcosms contained An. quadrimaculatus larvae only. The minimum temperature at the water surface was significantly greater in the open water habitat. Laboratory experiments show that food quality and temperature had a significant effect on larval survivorship. Developmental rates, survivorship, and adult size were higher in the algal clump treatment. The results of this study indicate that factors like surface water microclimates and enhanced food resources can be used to predict An. quadrimaculatus larval distribution and success.

Keywords: Anopheles quadrimaculatus; growth rates; microclimate; predation; survivorship

Document Type: Research Article

Publication date: April 1, 1999

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  • Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment and is divided into the following sections: physiological ecology; chemical ecology; population ecology; quantitative ecology; community and ecosystem ecology; biological control--parasitoids and predators; biological control--microbials; biological control--weeds; behavior; pest management; sampling; plant-insect interactions; molecular ecology and evolution; transgenic plants and insects. In addition to research papers, Environmental Entomology publishes Letters to the Editor, interpretive articles in a Forum section, and Book Reviews.
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